[1] UNIV MIAMI,SCH MED,DEPT MICROBIOL & IMMUNOL,MIAMI,FL 33101
[2] MAYO CLIN & MAYO FDN,DEPT IMMUNOL,ROCHESTER,MN 55905
[3] ANTONI VAN LEEUWENHOEK HOSP,HET NEDERLANDS KANKERINST,1066 CX AMSTERDAM,NETHERLANDS
[4] UNIV TEXAS,HLTH SCI CTR,HOWARD HUGHES MED INST,DALLAS,TX 75235
[5] WADSWORTH CTR LABS & RES,ALBANY,NY 12201
[6] YALE UNIV,SCH MED,HOWARD HUGHES MED INST,NEW HAVEN,CT 06510
[7] SLOAN KETTERING MEM CANC CTR,DIV IMMUNOL,NEW YORK,NY 10021
[8] CALTECH,DEPT BIOL,PASADENA,CA 91125
[9] UNIV N CAROLINA,DEPT MED,CHAPEL HILL,NC 27599
[10] STANFORD UNIV,DEPT BIOL SCI,STANFORD,CA 94305
[11] INST PASTEUR,F-75724 PARIS 15,FRANCE
[12] STANFORD UNIV,MED CTR,SCH MED,DEPT MED,STANFORD,CA 94305
[13] NYU MED CTR,DEPT PATHOL,NEW YORK,NY 10016
[14] NEW YORK STATE DEPT HLTH,DEPT IMMUNOL,ALBANY,NY 12201
[15] YESHIVA UNIV ALBERT EINSTEIN COLL MED,DEPT MICROBIOL & IMMUNOL,BRONX,NY 10461
[16] NIH,IMMUNOL BRANCH,BETHESDA,MD 20205
[17] F HOFFMANN LA ROCHE & CO LTD,CENT RES UNIT,CH-4002 BASEL,SWITZERLAND
[18] MIT,CTR CANC RES,DEPT BIOL,CAMBRIDGE,MA 02139
[19] UNIV FLORIDA,DEPT PATHOL,GAINESVILLE,FL 32610
[20] UNIV MUNICH,INST IMMUNOL,W-8000 MUNICH 2,GERMANY
[21] INST CHIM BIOL,INSERM,U184,CNRS,GENET MOLEC EUCARYOTES LAB,F-67085 STRASBOURG,FRANCE